1984740537 has 8 divisors (see below), whose sum is σ = 2849883904. Its totient is φ = 1221378768.

The previous prime is 1984740533. The next prime is 1984740601. The reversal of 1984740537 is 7350474891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1984740537 - 2² = 1984740533 is a prime.

It is a super-2 number, since 2×1984740537² = 7878389998422096738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1984740533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25445353 + ... + 25445430.

It is an arithmetic number, because the mean of its divisors is an integer number (356235488).

Almost surely, 2^1984740537 is an apocalyptic number.

It is an amenable number.

1984740537 is a deficient number, since it is larger than the sum of its proper divisors (865143367).

1984740537 is a wasteful number, since it uses less digits than its factorization.

1984740537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50890799.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 1984740537 is about 44550.4269003115. The cubic root of 1984740537 is about 1256.7085794531.

The spelling of 1984740537 in words is "one billion, nine hundred eighty-four million, seven hundred forty thousand, five hundred thirty-seven".